Kelp
Sea Kelp
海帶
Moisturizer
Some studies have shown that many seaweed plants are acne-causing and irritating. The high content of iodine may cause skin irritation and penetrate into the pores to accelerate the growth of micro-comedones. In any case, since there are so many types of seaweed and many of them are highly processed in cosmetics, it is impossible to generalize at present, but if you are in a state of sensitive or acne skin, it is recommended to choose products containing algae carefully.
致粉刺指數3
資料來源https://skinsalvationsf.com/comedogenic/
pore clogging ingredient
Where are the studies claiming that seaweed plants are acne-causing and irritating? I'm unable to find anything other than skincare blogs making these claims, which also do not cite data or even give anecdotal evidence.